National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

Allentown, Lehigh Valley International Airport (KABE)

Lat: 40.65°NLon: 75.45°WElev: 384ft.

Mostly Cloudy

39°F

4°C

Humidity 96%
Wind Speed W 5 mph
Barometer 29.81 in (1009.7 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 11 Jan 4:51 am EST
Extended Forecast for

2 Miles ENE Mertztown PA

  • Today

    Today: A chance of rain and snow showers between 1pm and 3pm, then a chance of snow showers after 3pm. The snow could be heavy at times. Partly sunny, then gradually becoming sunny, with a high near 41. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. Total daytime snow accumulation of less than a half inch possible.

    High: 41 °F

    Sunny then
    Chance
    Rain/Snow

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 28. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: 28 °F

    Decreasing
    Clouds and
    Breezy

  • Monday

    Monday: Sunny, with a high near 40. West wind 10 to 15 mph.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 27. West wind 5 to 10 mph.

    Low: 27 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45. Southwest wind 5 to 10 mph.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain after 1pm. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.

    High: 48 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

    Low: 29 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 34. Chance of precipitation is 40%.

    High: 34 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Today
A chance of rain and snow showers between 1pm and 3pm, then a chance of snow showers after 3pm. The snow could be heavy at times. Partly sunny, then gradually becoming sunny, with a high near 41. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 28. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Monday
Sunny, with a high near 40. West wind 10 to 15 mph.
Monday Night
Mostly clear, with a low around 27. West wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 45. Southwest wind 5 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
A chance of rain after 1pm. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Thursday
A chance of rain before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 34. Chance of precipitation is 40%.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 32.
Friday Night
Mostly cloudy, with a low around 21.
Saturday
Mostly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Mertztown PA
 40.5°N 75.63°W (Elev. 650 ft)
Last Update:
5:06 am EST Jan 11, 2026
Forecast Valid:
5am EST Jan 11, 2026-6pm EST Jan 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation